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Nokia 4A0-M10 - Questions & Answers

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Question 1
Single choice

Which of the following best describes the function of a PDU session flow classifier?

A.

An SMF that dynamically inserts and removes uplink classifiers (UL CL) at the UPFs.

B.

An SMF that dynamically inserts and removes UL CL at the UE.

C.

A UPF that terminates the N6 interface towards the data network.

D.

A UPF that filters uplink traffic according to UL CL rules provided by the SMF.

Question 2
Single choice

Which of the following statements regarding cloud RAN architecture is FALSE?

A.

The gNB is split into three functional modules: a radio unit (RU), a distributed unit (DU), and a centralized unit (CU).

B.

DU performs the non-real time processing of layer 2.

C.

The fronthaul segment connects RU to DU and the midhaul segment connects DU to CU.

D.

CU can be deployed in the cloud as a VNF.

Question 3
Single choice

A UE has a PDU session established using slice 1. The operator removes slice 1 from the UE subscription data stored in UDM.

Which of the following actions is NOT performed as a result?

A.

UDM notifies the serving AMF about the UE subscription data modification.

B.

AMF initiates the UE configuration update procedure.

C.

AMF requests the UE to release the established PDU session.

D.

UE updates its slicing information with the data received from AMF.

Question 4
Single choice

Which of the following does NOT apply to an idle UE in MICO mode?

A.

The UE performs registration updates.

B.

The UE connects to the network to send uplink data.

C.

Power and signaling efficiency is optimized for the UE.

D.

The UE listens and responds to paging.

Question 5
Single choice

Which of the following statements about 5G NG-RAN is FALSE?

A.

The Xn interface is used to connect gNB to ng-eNB.

B.

The NG interface is used to connect ng-eNB to UPF.

C.

The Xn interface is used to connect ng-eNB to AMF.

D.

The NG interface is used to connect gNB to NGC.

Question 6
Single choice

Which of the following statements about Option 3X dual connectivity is FALSE?

A.

VoLTE traffic is handled by the LTE network.

B.

Dual connectivity is used for high throughput services such as eMBB.

C.

When NR radio quality becomes sub-optimal, gNB decides to split the bearer.

D.

Both eNB and gNB are connected with S1-U interfaces to SGW.

Question 7
Single choice

Which of the following statements about QoS profiles used in 5G is FALSE?

A.

SMF derives the QoS profile of a QoS Flow from a PCC rule and sends it to NG-RAN.

B.

NG-RAN uses the QoS profiles to create mapping between QoS Flow IDs and data radio bearers.

C.

NG-RAN sends the QoS profiles and corresponding QoS Flow IDs to the UE.

D.

Each QoS profile includes a 5G QoS Identifier (5QI) and an Allocation and Retention Priority (ARP).

Question 8
Single choice

Which of the following statements about network slice selection assistance information (NSSAI) is FALSE?

A.

Allowed NSSAI is a set of slices provided to UE by AMF during UE registration procedure.

B.

Requested NSSAI is a set of slices provided by UE to the network and contains values from serving PLMN.

C.

Subscribed NSSAI is a set of slices specified in the UE subscription data and contains only home PLMN values.

D.

Configured NSSAI is a set of slices configured on the AMF and contains slices supported per tracking area.

Question 9
Single choice

Which of the following statements regarding the 5G security components is FALSE?

A.

The authentication credential repository and processing function (ARPF) selects the authentication method to use for the UE.

B.

The authentication server function (AUSF) handles authentication requests for both 3GPP and non-
3GPP access.

C.

The security anchor function (SEAF) makes the final decision on UE authentication.

D.

The security identifier de-concealing function (SIDF) decrypts the UE's SUCI to obtain its corresponding SUPI.

Question 10
Single choice

Which of the following statements about N2-based handover in 5GS is FALSE?

A.

Handover signaling messages are exchanged between source and target NG-RAN nodes through
AMF.

B.

The serving AMF determines if it can continue to serve the UE and select a target AMF when required.

C.

The serving SMF determines if the UPF terminating N3 can continue to serve the UE and selects a target I-UPF when required.

D.

The SMF decides whether a direct or indirect downlink data forwarding path is to be used.

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